Spin rate and spin axis orientation of LARES spectrally determined from Satellite Laser Ranging data

被引：23

作者：

Kucharski, D. ^{[1
]}

Otsubo, T. ^{[2
]}

Kirchner, G. ^{[3
]}

Bianco, G. ^{[4
]}

机构：

[1] Korea Astron & Space Sci Inst, Div Space Sci, Taejon 305348, South Korea

[2] Hitotsubashi Univ, Kunitachi, Tokyo 1868601, Japan

[3] Austrian Acad Sci, Space Res Inst, A-8042 Graz, Austria

[4] Ctr Geodesia Spaziale G Colombo, Agenzia Spaziale Italiana, I-75100 Matera, Italy

来源：

ADVANCES IN SPACE RESEARCH | 2012年 / 50卷 / 11期

关键词：

Satellite Laser Ranging; LARES; Geodetic satellite; Spin determination; Spectral analysis; KHZ SLR DATA; PERIOD DETERMINATION;

D O I：

10.1016/j.asr.2012.07.018

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Satellite Laser Ranging (SLR) is a powerful technique able to measure spin rate and spin axis orientation of the fully passive, geodetic satellites. This work presents results of the spin determination of LARES - a new satellite for testing General Relativity. 529 SLR passes measured between February 17 and June 9, 2012, were spectrally analyzed. Our results indicate that the initial spin frequency of LARES is f(0) = 86.906 mHz (RMS = 0.539 mHz). A new method for spin axis determination, developed for this analysis, gives orientation of the axis at RA = 12(h)22(m)48(s) (RMS = 491), Dec = -70.4 degrees (RMS = 5.2 degrees) (J2000.0 celestial reference frame), and the clockwise (CW) spin direction. The half-life period of the satellite's spin is 214.924 days and indicates fast slowing down of the spacecraft. (C) 2012 COSPAR. Published by Elsevier Ltd. All rights reserved.

引用

页码：1473 / 1477

页数：5

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